Treaty on the Non-Proliferation of Nuclear Weapons
(1968)
Article I
Each nuclear-weapon State Party to the Treaty
undertakes not to transfer to any recipient whatsoever
nuclear weapons or other nuclear explosive devices or
control over such weapons or explosive devices directly,
or indirectly; and not in any way to assist, encourage, or
induce any non-nuclear-weapon State to manufacture or
otherwise acquire nuclear weapons or other nuclear
explosive devices, or control over such weapons or
explosive devices.
Article II
Each non-nuclear-weapon State Party to the Treaty
undertakes not to receive the transfer from any
transferor whatsoever of nuclear weapons or other
nuclear explosive devices or of control over such
weapons or explosive devices directly, or indirectly; not
to manufacture or otherwise acquire nuclear weapons or
other nuclear explosive devices; and not to seek or
receive any assistance in the manufacture of nuclear
weapons or other nuclear explosive devices. …
Article VI
Each of the Parties to the Treaty undertakes to pursue
negotiations in good faith on effective measures relating
to cessation of the nuclear arms race at an early date and
to nuclear disarmament, and on a treaty on general and
complete disarmament under strict and effective
international control.